Welding machine



Sept. 23, 1947. L. TROMBETTA WELDING MACHINE Filed July 15, 1945 2Sheets-Sheet 1 IN V EN TOR. A 00/3 77am beffa.

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Sept. 23, 1947. 1. TROMBETTA WELDING IACHINE Filed July 13, 1945 2Sheets-Sheet 2 INVENTOR. 100/3 Trombefla Patented Sept. 23, 1947 UNITEDSTATES PATENT OFFICE.

- 2,427,696 I .WELDlNGlVIACH INET Louis Trombetta,-New York, N. -Y.-Application July 13, 1945, Serial No. 604,943

2Claims. (01. 113-59)- (Granted under the act of Marchj3,t l883, asamended April 30, 1928; 370 0. G. 757) This invention relates to acarrier {or a welding machine. 7

Inthe past when long stiffeners were to be welded to a deck or plate thewelding-apparatus was propelled on tracks. This invention eliminates thetracks and the attendant labor required to lay and remove the tracks andprovides a means of welding in areas where it is not feasible to usetracks.

An object of this invention is tov provide a carriage for weldingapparatus which will elimimate the use of tracks.

Another object of this invention is to provide a carriage for a weldingmachine which can readily be used with or without tracks.

Still another object of this invention is to provide a carriage for awelding apparatus which can be spaced as desired from the work.

Further objects and advantages of this invention, as well as itsconstruction, arrangement and operation, will be apparent from thefollowing description and claims in connection with the accompanyingdrawings, in which,

Fig. 1 is a top plan view of the carriage, a portion being broken awayfor clarity.

Fig. 2 is a view in vertical section on the line 2-2 of Fig. 1 andshowing the device inuse.

Fig. 3 is a fragmentary view of the casing showing the casters inoperative position, the inoperative position of the casters being shownby phantom lines.

Referring to the drawings in detail, Figs. 1 and 2 7 show a preferredembodiment of the invention in which a welding machine carriage isindicated generally at In and has a drive motor H and reduction gears I2to rotate the shaft 13 and drive wheels l4.

Drive wheels l4 have flanges l5 for normal track operation and a knurledflange [6 for better traction during trackless operation as, willsubsequently be more fully disclosed herein. Shaft 11 in the forwardportion of carriage ll) mounts wheels l8 of a construction similar todrive wheels 14.

To adapt carriage Hiior trackless operation, casing 20 is mounted oncarriage It! by means of bolts 21 and wing nuts 22.

Welded or otherwise suitably secured to the easing 20 is sleeve 30 whichslidably mounts adjusting bar 33 which in turn is pivotally connected toguide arm 34 by means of pivot. 35, adjusting bar 33 being held insleeve 30 by means of set screws 32. Rollers 36 which guide the machinealong the work are rotatably mounted on guide arm 34 by means of pivots31.

3 together by bolt. and wing nut 41.

Proper positioning of guide arm 34 is accomplished by 'means of links 38and 33' pivoted Link 38 is also pivoted to guide arm 34 by means oi!pivot 42 while link 39 is pivoted to bracket 43 by means of pivot 44,bracket 43' being welded to casing 20.

On the right side of the casing 20, as viewed in Fig. 1, are two castersslidably and rotatably mounted in sleeves 5i and prevented from fallingout by set screws 52, which are freely slidable in complementary groovesin the casters 50, sleeves M are welded to arms 53, the arms 53 beingattached to casing 20' by means of threaded studs 54 integral with thearms 53 and nuts 55, the studs 54 being mounted in bushings 84. The.arms 53 are held vertically in the operative position by means of setscrews 56 which are received by the threaded bores 51 in I the arms 53and the threaded bores 58 in casing 20. The arms 53 are held in ahorizontal inoperative position by threading set screws 36 in threadedbores 59 disposed in the same horizontal plane as the studs 54.

A support 60 for the, welding head to be usedis attached to the top ofcasing 20! by means of the wing nuts 22,, or other suitable" means.

In operation the device is placed on the deck 6!, and the casters 50placed in operative position, raising one pair of wheels l4. and I8 01!the deck. The guide arm 34 is set at an. angle slightly greater thanwith respect to adjusting bar 33 to cause the device to move toward thework. Rollers 36 are placed against stiffener 62 which is to be weldedto deck 6 i and the device set in motion, the weld being made at- 63,the intersection of deck 6 I and stiffener 62. By using casters 50instead of wheels l4 and [3 for locomotion the device can be readilyturned around curves and corners. to move the device on all four wheelsl4 and i8, either on tracks or a surface, the casters 50- are moved tothe inoperative horizontal. position.

It is to be understood that variousmodiflcations and changes may be madein this invention without departingfrom the spirit and scope thereof asset forth in the appended claims.

The invention described herein may be man- 4 ufactured and used by orfor the Government of the United States of America for governmental Whenit is desired her, means to adjustably position said elongated memberwith respect to said casing, a guide arm pivoted to said elongatedmember, rollers on said guide arm, and means to vary the angularrelationship of said guide arm with respect to said elongated member,said means comprising links pivotally mounted on said casing and saidguide arm, and means to fix the angular relationship of said links withrespect to each other.

2. A welding machine comprising a carriage, a casing on said carriage, asleeve on the end of said casing, a bar slidably mounted in said sleeve,set screws in said sleeve to fix the position of said bar, said barextending beyond one side of said casing, a guide arm pivoted to thefree end of said bar, rollers rotatably mounted on vertical axes on saidguide arm, a bracket on the said one side of said casing, a link pivotedto said bracket, a second link pivoted to said guide arm, said linksbeing connected at a point between said guide arm and said one side ofsaid casing, means to fix the angular relationship of said links withrespect to each other,

arms on the other side of said casing, said arms said other side of saidcasing, and a welding head support mounted on said casing.

LOUIS TROM'BE'I'IA.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATEN'IS Number Name a Date 2,015,329 Anderson Sept. 24,1935 1,811,835 Anderson June 30, 1931 Glaum Sept. 29, 1936

